sysfb: Make config option dependencies explicit

efifb and vesafb requires sysfb implicitly but this is not stated in
Kconfig. Add the dependency.

With that all drivers that require sysfb depend on it so it can default
to disabled.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/a0fa41e9186653e4c41ad0a28259e5cdc71b1f66.1645822213.git.msuchanek@suse.de

drivers/firmware/Kconfig

@@ -218,12 +218,11 @@ config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
 
 config SYSFB
 	bool
-	default y
-	depends on X86 || EFI
 
 config SYSFB_SIMPLEFB
 	bool "Mark VGA/VBE/EFI FB as generic system framebuffer"
-	depends on SYSFB
+	depends on X86 || EFI
+	select SYSFB
 	help
 	  Firmwares often provide initial graphics framebuffers so the BIOS,
 	  bootloader or kernel can show basic video-output during boot for

drivers/video/fbdev/Kconfig

@@ -628,6 +628,7 @@ config FB_VESA
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
 	select FB_BOOT_VESA_SUPPORT
+	select SYSFB
 	help
 	  This is the frame buffer device driver for generic VESA 2.0
 	  compliant graphic cards. The older VESA 1.2 cards are not supported.
@@ -641,6 +642,7 @@ config FB_EFI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select SYSFB
 	help
 	  This is the EFI frame buffer device driver. If the firmware on
 	  your platform is EFI 1.10 or UEFI 2.0, select Y to add support for